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No. 595,948. Patented Dec. 21,1897.

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REVOLVING DOOR, I N0. 595,948. Patented Dec. 21, 1897.

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WALTER W. IFE, OF ST. PAUL, MINNESOTA.

REVOLVING DOOR.

SPECIFICATION forming part of Letters Patent No. 595,948, dated December 21, 1897.

Application filed February 24, 1894. Serial No. 501,456. (No model.)

To all whom it may concern.-

Be it known that I, WALTER W. IFE, of St. Paul, Ramsey county, Minnesota, have invented certain Improvements in Revolving Doors, of which the following is a specification. I

My invention relates to improvements in revolving doors, its object being to provide an improved structure in which the casement-walls are so constructed as to preserve their contour and surface in all changes of weather, that the door wings may be detachable from the door and hung upon the casement-walls, and that the door itself may be removed from the casement whenever it be necessary for any purpose.

To this end my invention consists in forming the door with detachable radiate hinged wings; in providing for the door detachable pivot connections which permit of the ready unshipping and removal of the door; in constructing the casement-walls of narrow wooden strips independently secured upon a rigid metallic frame, whereby the shrinking and swelling of the wood by exposure to the atmosphere will not impair either its true cylindrical form or its strength or the finish of the surface, and also in providing detachable hinged extension-pieces for the casementwalls, which normally serve as parts thereof, and may be thrown back or detached therefrom, so as to widen the aperture between.

My invention further consists, in the construction and combination hereinafter more particularly described and claimed.

In the accompanying drawings, forming part of this specification, Figure 1 is an elevation of my improved revolving door and casing therefor. Fig. 2 is a cross-section of the door and easing therefor, also showing it in dotted lines with the wings brought together and the flaps thrown back to permit the passage of bulky objects, and in dash lines with the wings unshipped and swung from the segmental frame and the flaps thrown back as in summer use, and in dotand-dash lines as for the exit of large gatherings. Fig. 3 is a cross-section of a portion of the door having my several improvements in braces and hinges applied thereto. Fig. 4 is a detail View of one member of my improved flush hinge for swinging the wings of my revolving door when rehung on the frame-segments. Fig. 5 is a sectional view of the hinge and its socket. Fig. 6 is a view of the front plate of this hinge. Figs. 7 and 8 are plan views of the members of the hinge for swingin g the wings from the revolving center post. Figs. 9 and 10 are elevations of the same. Fig. 11 is a sectional detail showing the method of securing the weatherproof rubber strips in the edges of the wings. Fig. 12 is a sectional detail'of the wooden strip'applied to the edges of the wings when reswung for summer use. This strip replaces the rubber strip shown in Fig. 11. Figs. 13, '14, and 15 are side and front elevations of the slotted member and a side elevation of the hook member of the device used in attaching the above-described wooden edge strip to the wings. Figs. 16 and 17 are elevation and plan views of one of the V-shaped sockets in which set the ends of my removable braces. Figs.

18 and 19 are views of the end of the bracearm and the dovetail head hinged thereon adapted to fit into the brace-sockets. Fig. 20 is a view of the pin and lock thereon for holding rigidly in bracing position the brace adapted to be broken whenthe wings are swung together. Figs.21 and 22 are plan and elevation of the corner-bolt for sustaining my removable rigid brace when it is applied to the door.

Fig. 23 is a sectional detail view of a portion of the door, showing the means for holding the interchangeable screen and glass sashes therein. Fig. 24 is a sectional detail view of my weatherproof joint and also of the single and double hinges for hanging the wings on the revoluble central standard. Fig. 25 is a detail elevation of upper portions of a wing and the central standard having thereon the weatherproofing band and ring holding it in position and meeting the rubber edging strip at the top of the'wings. Fig. 26 is a sectional detail view of the lower portion of the revoluble central standard, showing the lower adjustable bearing therein. Fig. 27 is an elevation of that portion of the revoluble central standard which contains the adjusting-bolt for raising and lowering the door. Fig. 28 is a view of the pin or wrench used with this adjusting device. Figs. 29 and 30 are vertical sectional and plan views of the lower pivot-box for receiving and holding in posithe casing and to the casing and floor.

65 to prevent its withdrawal.

tion the lower member of the pivot. Figs. 31, 32, and 33are views of the metal bars of the frame for the fixed sides. Figs. 34 and 35 are sectional views of the metal bars applied to Figs. 36 and 37 are sectional views showing means for hanging the wings at the ends of the segmental casing for summer use. Figs. 38 and 39 are elevation and plan views of the device x o for tightening the bracing-chain used between the wings. Fig. 40 is a section of the upper pivot-bearing of the revolving door. Fig. 41 is asimilar view of the lower pivot-bearing; and Figs. 42, 43, 44, 45, and 46 are a series of figures which more clearly illustrate the improved construction of casement-wall, Fig. 42 bein a rear elevation of one of the easements Fig. 43 a vertical section of the same, Fig. 44.

a horizontal section of the same on line 00 00 of Fig. 2, Fig. 45 a detail enlarged horizontal section, and Fig. 46 a detail vertical section of the same.

The door A, rotating within the fixed case-.

ments 13, consists either of the built-up central standards 2, constructed of the similar strips 3, successively secured to the adjacent strip, having its edge against the side of the former strip, and of the corresponding wings 4, swung thereon by the hinges having mem- 3o bers 5 and 6, or of the solid one-piece central standard 7, with the wings swung thereon by the hinges having members 6 and 8 or 6 and 9. While the door A is in ordinary use the wings are rendered immovable, as regards each other and the central standard, by a series of fourangle braces, of which the drawings (see Fig. 3) show the four different kinds 0, D, E, and F.

The rigid and immovable brace 0 consists of the straight rod 10, having at each end the base-plates 11, adapted to be secured to the wings 4 by the screws 12.

The removable brace D consists of the curved rod 13 and the right-angled bent rod 14, having at their common ends the dovetail projections 15, adapted to fit and rest in the sockets 16 on the plates 17, which are secured to the wings 4 by the screws 12. The rod 14 is flattened at the bend, and a hole is drilled therein that the brace may be secured thereby on the corner-bolt 18 with the fin ger-nut in the prongs of each member of which holes are drilled to register with the corresponding holes in the prongs of the other member, so that when the pin 23 is inserted through the outer registering holes the brace is free to close inwardly, bringing the attached wings together; but when the pin 24 is inserted in the inner registering holes the brace is rendered rigid and may be so secured by the lock 25, passed through the end of the pin 24 (See Fig. 20.) The brace is hinged at the outer ends 26 to the shanks 27, having the dovetail removable projections 28, that fit in the sockets 29 on the plates 30, secured to the wings 4, these projections and their sockets constituting a wedging tenon and mortise. The projections are held in the sockets by turning down the eccentrics 31. (See Figs. 17, 18, 19, and 20.)

The chain-brace F consists of the chain 32, secured at one end to the staple 33, driven in the wing 4, and at the other end to one end of the pin 34, having its other end passed through the serrated slot 35 in the plate 36 on the opposite wing, the ball 37 being of greater diameter than the width of the slot. (See Figs. 38 and 39.) The plateis secured diagonally to the wing and tends with the slot therein downwardly and toward the outer edge of the wing, so that any slack in the chain may be taken up by slipping the pin farther down inthe slot.

The door A turns upon the adjustable bearing G, which is set in the hollow therefor in the lower end of the center posts 2 or 7, and which consists of the washer 3 9, resting upon the threaded adjusting-bolt40, which in turn rests in the threaded cavity 41 therefor in the top of the shaft 42. (See Figs. 1 and26.) The shaft bears and turns upon the conical pivot 43 in the pivot-cup 44, which is set in the cup-socket 45. (Sec Figs. 29 and 30.) The standard is cut away at 46, opposite the head of the adjusting-bolt, which has been horizontally drilled to permit the turning of thebolt by the pin-wrench 47, by which the door may be placed at the desired height and the wear of the pivot and shaft taken up. (See Figs. 27 and 2S.) Provision is made for supplying oil to the bearings of the pivot and shaft by means of the hole 48. The socket 45, the top of which is flush with the floor, is covered when the door A is removed by the plate 49, which is held therein by the screwbolt 50.

The upper bearing for the door consists of the pivot-guide 51, set in the bearing-cap 56, centrally secured upon the casing B and standing in said guide, the pivot 53, its point resting in the bearing-block 54 in the top of the central standard and its head borne down by the spring 55, which is secured in the bearing-cap 56. (See Fig. 1.) The part of the bearing below the top 52 of the casing is surrounded by the hollow flexible cylinder 57, and the same is held to the top of the post by the encircling rubber ring 58. (See Fig. 25.)

The edges of the revolving wings 4 have inserted therein rubber strips 59 to make the joints between the wings and the casings and the floor weatherproof andalso to avoid any possible injury to the hands of the passers in and out that might be caught between the edges of the casing and wings. In Fig. 11 is shown a method of securing this rubber edg ing in the edges of the wing, by which the rubber is first secured in the groove 60 of a corner-strip 61 with a wedging-strip 62, and the strip 61 then fastened in the corner of the edge of the wing with the screws 63. In

summer use of these wings this strip 61, holding the rubber edging, is removed, and in its place there is secured the wooden strip 64 by the slotted plate 65 and hook 66, adapted to engage therein, secured, respectively, to the wing and strip. (See Figs. 12, 13, 14, and 15.) By a similar device 67 (shown in Figs. 36 and 37) the strip 68, having on one edge the hook 66 for engaging with the slotted plate 67, set in the casing-post 69, and on the other edge the members f hinges having for summer use the wings 4, is readily secured at the sides of the segmental casement B. Also for the purpose of hanging the wings for summer use thefiush hinges H are set in the casing-posts 69. They consist of the socket 71, having therein the vertical pin 72, on which partially revolves in and out of the socket the \I- shaped plate 73, having at its angle the hole through which the pin 72 is placed and at the outer corner the hole 74, into which the hinge member 6 on the wings 4 is socketed. The plate 73 is thrown out of the socket through the action of the compound levers 75 and 76, following the depression of that end of the lever, 75 which projects from the openings 77 in the front socketplate. socket by dropping slightly, so that the shoulder on the bottom of-the plate engages with the lower edge of the openings 78. The plate must be lifted to be replaced, which leaves the inner surface of the casing free for the passage of the edges of the wings in their revolution. This action may be easily followed in Figs. 4, 5, and 6. 7

The hinges used have these peculiar features, which render very easy the hang of the wings-namely, the grooved guide 79 of the socket members 5, 8, 9, and 73, extending from the outer edge of the members to the sockets therein, and the beveled ends 81 of the downward projections 82 of the other member 6 of the hinges. On the central standard 7 the hinges used for the wings that swing together have in common their socket member 9.

To prevent the passage of air between the inner edges of the wings and the center post, the projecting beadings 83 (see Fig. 24) are grooved into the center post to meet that portion of the edge of the wing adjacent to the hinges, while to meet the other portion of theedge of the wing the rubber strip 84 is so secured to the post that it will be compressed by the inner edges of the wing standing apart, as in ordinary use.

In Fig. 23 I have shown in sectional detail a portion of a wing, showing how the interchangeable screen and glass sashes 87 and 88 are secured in the wings 4, the beadings 89 holding the panel 90, between which, in the guides 91', slide the screen and glass sashes.

In the construction of the easement or side wall of the structure it is important that the cylindrical curvature be exactly preserved,

The plate 73 is retained out of the and substantial structure by the use of the improved features shown in Figs. 1, 2, 31, 32, 33, 34, 35, 36, 42, 43, 44, 45, and 46. The casement-wall itself is made up of narrow vertical matched wooden strips 92, which are supported upon a metallic frame having the desired curvature. This frame is made up of the angle-bars at the top and bottom, the bottom one having one web secured to the floor by screws or other proper fastening, and the top one having one web similarly secured to the top or ceiling of the structure.

An intermediate T- shaped angle-bar 86 serves as a medial support for the wall. The webs on these bars are formed with screw holes or slots through which screws may be passed into the strips 92. The strips therefore are independently secured to the bars forming the frame and cannot get out of place,

and the shrinking of the stock is distributed throughout the entire width of the structure, so that no large cracks are formed to mar the same.

For the purpose of increasing the width of the opening or aperture when it is necessary to carry furniture or other large objects through the same I prefer to form the casement-walls with extension-pieces 70, which are detachably hinged to the edges of the rigid casement and may be therefore readily thrown back when desired, or detached, but when in normal position serve as continuations of the casement-wall, being of corre-.

sponding curvature.

I do not claim in this application a structure consisting of radiating wings and jointed braces connecting the same'having pivotal connection with said wings, and also having IIC a locking device for the joint and for detachextension-pieceshinged to the edges of the fixed part, and constituting when in normal position parts of the easement, but adapted to be turned outward so as to be out of contact with the door, and to widen the aperture through the doorway.

2. In a structure of the class described, the combination with the revolving door, of the casement partially. inclosing the same, consisting of a fixed medial part, made up of horizontal curved angle-bars, and vertical wooden strips independently secured thereto, and extension-pieces hinged to the edges of said fixed part, serving when in normal position as part of the casement-wall,but adapted to be thrown back out of use, and to widen the aperture between.

3. In astrueture of the class described, the combination with the revolving door, of the cylindrical casement-wall secured in the doorway, proportioned to, and partially inclosing, said door, whichis adapted to rotate closely within the same, said casement comprising in combination the curved, metallic, anglebar frame, thevertical. wooden strips independently secured to said frame, and the hinged extensions mounted upon the edges of said frame, and adapted to serve as parts of said; wall, or to be thrown out of position to widen the aperture between.

4:. In a structure of the class described, the .combinationwith the cylindrical casementwalls, of the door adapted to revolve within said casement, and closely fitted to the same, composed of radiate wings, and means for detachably hinging said wings to the easementwall to .serve as swinging doors to close the aperture between said easements.

5. In a struetureof the class described, the combination with the side walls of the doorway, of the extensible hinge members arranged in the space between said walls, and the ,doorsadapted to be supported uponsaid hinge members when projectedout from said walls. I

, 6. b In a revolving door of the class described, thecombination with the alternating fixed and, hinged radiating wings, of the detach- .able, interposed braces havingdovetailed, or wedge-shaped connections for securing the same to said wings.

7. In a revolving door,the combination with the alternating fixed and hinged radiating wings, of the interposed knuckle jointed braces and thedovetailed tenons and sockets for detachably securing them to said wings.

.8. In a revolving door,the combination with the alternating fixed and hinged radiating wings, of the interposed jointed brace, the offset lugs upon the members of the brace having holes registeringwhen the joint is closed, and the securing-pin fitted to said registering holes.

9. In a revolving door,the,combina tion with the alternating, fixed and hinged radiating .wings,of the detachable braceshaving dovetailed attachments to the adjacent wings, and the locking device for said attachment.

10. In a revolving door, the combination with the standard, of the fixed conical pivot therefor, the bearing-block upon said standard having a conical seat fitted to said pivot,

with its standard, of the conical supportingpivot, the oil-cup surrounding, the same, the

bearing block or shaft arranged in said standard and seated upon said pivot, and the screw for adjusting the bearing-block in the standard to raise and lower the same.

13. The combination with the revolving door having a fixed bottom pivot, of the spring-pressed top pivot, and the elastic collar surrounding the bearing thereof.

14:. In a revolving door, the combination with the standard and the detachable radiating wings, of the socket-hinge member secured to one part having a guide-groove leading to the socket, and the pintle member connected to the other part and having abeveled point to engage said guide and socket.

1.5. In a revolving door, the combination with the pivoted standard and the radiating wing, of the connecting-hinge therefor,and the interposed elastic cushion.

16. In a revolving door, the combination with the pivoted standard and the radiating wing, of theeonneeting-hinge, the parts having curved overlapping edges, and the interposed elastic cushion.

17. In a structure of the class described, the combination with the door-wing, of the removable strip adaptedto be secured in the rabbeted edge thereof and having. a groove on its inner face, the elastic strip having its edge arranged in said groove andextending between the strip and the door, and projecting beyond the edge thereof, and. the wedge fitted to said groove,

18. In a structure of the class described,

Jthe combination with the revolving door, having radiate wings, of the easement for the same, within which it closely rotates, consisting of a fixed wall in the form of a cylindrical segment, and extension-pieces upon the edges of said fixed wall, having like cur- Vature,and serving. normally to further inclose the door, but adapted to be moved out of engagement with the door, and to leave the space between the opposite fixed walls unobstructed.

In testimony whereof I affix my signature in presence of two witnesses.

WALTER IV. IFE.

Witnesses:

F. G. BRADBURY, W. C. SWIFT. 

